Call-clock



C. R. GAINS.

CALL CLOCK.

APPLICATION FILED IuIIIz l6. I920.

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4 SHEETS-SHEET Patented Mar. 15, 1921 diff/er 71.

C. R. GAINS.

CALL CLOCK.

APPLICATION FILED JUNE 16, 1920.

0 a a 115 m fiz m 1 a 4 mm 5 Mu r P d4 7 w r L n m m J P F C. R. GAINS.

CALL CLOCK. APPLlCATlON FILED JUNE 16, 1920.

Patented Mar. 15, 1921.

4 SHEETS-SHEET .v '/IIIIIIIIIIIIII I (ZK/VF/ 556/270 21 AM em/M.

(Mi/7e K attorney c. R, GAINS.

CALL CLOCK. APPLICATION FILED JUNE 16, 1920. 1,371,781 Patented Mar 15,1921.,

4 SHEETS-SHEET 4.

35, PM] I QYLUCHTOL 1 i LI lwifim fiwferff G m m5 v 9515 1mm UNITEDSTATES PATENT OFFICE.

CHESTER R. GAINS OF COLFAX,

IOWA, ASSIGNOR OF ONE-HALF T SAMUEL A. POTTS, OF MUSCATINE, IOWA.

CALL-CLOCK.

Application filed June 16, 1920. Serial No. 389,363.

To all whom it may concern:

Be it known that I, CHESTER R. GAINs,

" a citizen of the United States, and a resident of Colfax, inthe countyof Jasper and State of Iowa, have invented a new and useful Call-Clock,of which the following is a specification.

My invention is a reminder or call alarm principally adapted for use inoilices, kltchens, schools, laboratories, etc., or 1n any other placerequiring an alarm to be sounded during predeterminedtime'periods,'espevcially periods of very short duration.

Primarily it is the purpose of the invention to provide a timecontrolled alarm that may be quickly set for sounding the alarm at theend of a given period, and after such actuation of the alarm may beoperated to render the alarm inoperative and re-set to again sound thealarmat the end of the same (period of time or any other period Further,it is the purpose of the invention to provide a time controlled alarmemploying a conventional time-piece and alarm together with a novelescapement for releasing the alarm at predetermined time periods.

' It is another important object of the in- I vention to provide a timecontrolled alarm mechanism which, after operation to release the alarm,permits the latter to sound until the alarm is manually. renderedinoperative.

My invention further provides a time con trolled alarm which may be setto be operated at given periods, such as from one to sixty minutes, andwhich is of comparatlvely simple construction and can therefore beproduced at a minimum cost.

With the preceding and other objects that may become apparent from thefollowing disclosure, the invention consists in the novel combination ofelements, constructions and arrangement of parts and operations, 7 'allof which will be hereinafter enlarged upon, claimed and illustrated inthe accompanying drawings, wherein:

Figure 1 is a front elevation of, a time controlled mechanismconstructed in accord ance with the present. lnvention;

Fig. 2 is a vertical sectional view of the same;

Fig. 3 is a view taken at right angles to Fig. 1, parts beingbrokenaway;

Fig. 4 is a transverse sectional view taken on line 4-4 of Fig. 2;

Fig. 5 is a fragmentary detailed view;

on line 66 of Fig. 2;

Fig. 7 is a fragmentary perspective of the step-by-step alarm mechanism;

Fig. 8 is a fragmentary elevation, illustrating the alarm escapement andthe operatmg elements for controlling the step-by.- step movableelement, the dotted line position indicating the relative position ofthe parts before release of the escapement;

Fig. 9 is a view partly in elevation and partly in section of the alarmand escapement;

Fig. 10 is a fragmentary elevation of the movable step-by-step elementand pivoted alarm escapment actuating trip, these parts being shown indotted lines in inoperative or. normal position;

Fig. 11 is a fragmentary view partly in elevation and partly in verticalsection of the elements controlling the movement of the step-by-stepelement; and

Fig. 12 is a detailed view illustrating the driving connection betweenthe time congolling mechanism and the part shown in fieferring in detailto the drawings wherein corresponding parts are designated bycorresponding characters of reference throughout the several views, thenumeral 5 designates a base which is formed preferably of stamped sheetmetal and mounted upon the base at its upper end is a time-piece 6including an alarm escapement therefor indicated at 7, the alarm beingmounted upon the rear face of the base.

Parallel brackets 8 are secured to the inner face of the base 5 atpoints below the timepiece 6 and at the lower end of the base 5respectively, and secured to these brackets is a pair of vertical guiderods 9. A plate or carriage 10 is provided having right angularextensions 11 at its opposite ends having slidable engagement with thevertical guide rods 9. A weight 12 is secured to the carriage 10 tonormally urge the same downwardly. The extensions 11 are provided withlateral bearings or ears 13 at their inner A coil spring 18 encirclesthe shaft 14 and has one end extended to lie against the plate 15 tonormally urge the same away from the carriage 10..

Fixed to the shaft 19 of one of the reducing gears of the clockmechanism is a disk 20 from the periphery of which a plurality of spacedpins 21 project. A second set of spaced pins 22 project from the outerface of this disk.

A bearing 23 is mounted upon the frame of the clock mechanism above thedisk 22 while a bracket 24 is mounted upon the base 5 in alinement withthe bearing 23 and is formed with a bearing 25 upon its upper. face. Anoscillatory or rock shaft 26 is journaled in the bearings 23 and 25 andin order to limit the rocking or oscillatory movement of this shaft, itis provided with a laterally disposed pin 27 at its upper end which ismovable between a pair of parallel stops or pins 28 carried by thebearing 23. formed with a beveled lug 29 that extends laterallytherefrom and in the path of the pins 22, and upon rotation of the disk20 the pins 22 successively engage the beveled lug 29 and rotate therock shaft in one direction. Each of the pins 22 upon engaging thebeveled lug 29, rotates the rock shaft a quarter turn in one direction.In order to move the shaft 26 in the reverse direction, this shaft isprovided with an outwardly extending pin 30 which extends at an obliqueangle with respect to the lug and in the path of the radially disposedpins 21 which successively strike this pin, each moving the rock shaft aquarter turn in the reverse direction.

It will be stated that the two sets of pins I 21 and 22 are so arrangedwith respect to the lug 29 and pin 30 as to rotate the shaft 26sufliciently to dispose the pin 30 in the path of the pins 21 while thelug 29 will be arrangedto clear the ins 22, and reversely upon movingthe sha t 26 sufficiently to dispose the pin 30 at a point to clear thepins 21, the lug 29 will be in the path of the pins 22. The lower end ofthe shaft 26 is rec tan lar in cross section and received on the sha tand fixed for rotation therewith is a rectangular frame 31.

Disposed upon opposite sides of the shaft 26 and within the rectangularframe 31 is a pair of pawls 32, one of which is at all times engagedwith the rack bar, thus causing the same to move step-by-stepdownwardly. Extending transversely through the frame 31, pawls 32andshaft 26 is a pivot 33. Leaf springs 34 are secured to the upper end ofthe rectangular frame31 and bear against the pivoted pawls 32 tonormally retain these pawls at a slight angle with respect to thevertical.

Piv'oted in the frame of the time mechanism 6 is a latch 35 providedwith right The shaft 26 is angularly disposed lugs 36 adjacent to and atits inner end respectively, the latterone being normally engaged withthe spring element 37 to normally hold the latch in the position wherethe other lug 36 will engage a notched disk 38 of the escapementmechanism 7 to normally render the alarm inoperative.

A flexible element 39 which may be a wire or the like is attached to theouter end of 7 the latch 35, while its opposite end is attached to apivoted trip 40 adapted to be engaged by an outstanding pin 41 arrangedon the rack bar 17 adjacent the lower end thereof, and thereby place theflexible element 39 under strain to disengage the latch 35 from theescapement to sound the alarm.

Extending in right angles from the plate 15 is a finger 42 and disposedin the path of one end of this finger is one end of an L-shaped lever43, the latter being pivoted intermediateits ends to the carriage 10 andextends outwardly therefrom and bent at its outer end to afl'ord afinger-engaging element 44. A second finger-engaging element 45 isdisposed below the element 44 and is rigid with the carriage 10. It willbe obvious that upon grasping the elements 44 and 45 the lever 43 willbe rocked on its pivot to swing the plate 15 against the tension of thespring 18 and disengage the rack bar 17 from the pivoted pawls 32 andthat upon moving the elements 44 and 45 upwardly the entire carriage andparts carried thereby will be raised to the required position to set thealarm for actuation at any predetermined time.

A casing 46 is positioned upon the base 5 to inclose the entireassemblage and includes a removable cover plate 47 secured to theparallel brackets by screws or other fastenings. This cover plate 47 isprovided with a longitudinal slot 48 through which the lever 43 andhandle 45 extend. The cover plate is also provided with a graduatedscale 49 along one edge of the slot 48 and represents a period of timeranging from one to sixty minutes. An indicator or pointer 50 extendslaterally from the grasping element 45 and is movable alongthe scale 49.

In the operation of my improved time controlled alarm, parts being innormal position as illustrated in Fig. 2, the finger-engaging elements44 and 45 are grasped to move the rack bar away fro-m the pivoted pawls32 and the carriage lifted until the indicator 50 corresponds to thepoint desired on the scale. The shaft 26 being rocked back and forth asabove set forth, one of the pawls 32 will be moved to one side of therack bar while the other pawl moves into engagement with one of theteeth of the rack bar and owing to the weight of the carriage, the samewill move at a position to actuate downwardly until the pawl has assumeda horizontal position, the pawls being limited in their pivotal movementin one direction by contacting with one wall of the frame 31. In thesame manner, the other pawl engages the rack bar upon reverse rotationof the shaft, thereby producing a step-bystep movement until the rackbar has reached its lowermost position when the pin 41 will engage thetrip 40 to release the latch from the alarm escapement.

It is to be understood that the form of my invention herein shown anddescribed is to be taken as a preferred example of the same, and thatvarious changes in the shape, size and arrangement of parts may beresorted to without departing from the spirit of the invention or thescope of the subjoined claims.

Having thus described my invention, what I claim as new and desire tosecure and lsirotectby Letters Patent of the United tates, 1s:

1. The combination with a time mechanism and alarm, a longitudinallymovable pivotally mounted carriage adapted to be set at a point torelease the alarm at a predetermined time, means operated by the timemechanism for lowering the carriage step-by-step, a pivoted elementoperatively connected with the alarm and in the path of the carriage tobe engaged by the latter upon the end of its downward movement torelease the alarm, and elements whereby to swing the carriage to aposition to clear the pivoted element raised to set position.

2. The combination with a time mechanism and alarm, a slidable carriageto be set the alarm at a predetermined time, a rock shaft drivenalternately in opposite directions and operated by the clock mechanism,element's carried by the rock shaft to alternately engage the carriageto feed the same step-by-step in one direction, and means for releasingthe alarm upon the completion of the movement of the carria e in suchdirection.

3. he combination with a time mechanism and alarm, of a shaft drivenalternately in opposite directions by the time mechanism, a slidable andpivoted bar, pivoted elements carried by the shaft-to retain the pivotedbar in such position as to move the same step-by-step whereby to releasethe alarm mechanism at the end of such movement; 1

4;. The combination with a time mechanism and alarm, of a slidablecarriage to be set at a position to actuate the alarm at a predeterminedtime, a shaft alternately driven in opposite directions, a pair ofpivoted-pawls normally resiliently held at an angle to the shaft andalternately engaged with the carriage to move the same downto permit thecarriage to be wardly step-by-step, and means operated at the end ofsuch movement of the carriage to release the alarm mechanism.

5. The combination with a time mechanism and alarm, of a rack barmounted for longitudinal movement, a pair of pivoted pawls engageablewith the rack bar, and means operated by the time mechanism foralternately engaging each of the pawls with the alternate teeth of therack bar to move the same longitudinally step-by-step whereby to releasethe alarm mechanism at the end of such movement.

6. In an alarm mechanism, a base, an alarm mechanism mounted thereon, acarriage slidable on the base to be set at a point to release the alarmat a given time, a shaft journaled on the base, means for alternatelydriving the shaft in opposite directions at a given speed, and elementson the shaft alternately engaging the carriage whereby to move the samestep-by-step to release the alarm mechanism at the end of such movement.

7. An alarm mechanism including a base, an alarm mechanism mountedthereon, a rack bar slidably mounted on the base to be set at any heightto releasethe alarm mechnism at a give time, a vertically disposed shafton the base, means alternately rotating the shaft in reverse directionsat a predetermined speed, and pivoted elements carried by the shaft andengageable with the rack bar to lower the same step-by-step to releasethe alarm mechanism at the end of such movement.

8. An alarm mechanism including a base, an alarm escapement mountedthereon, a disk rotated at a given speed, a set of radially disposedpins extending from the periphery thereof, a second set of pinsextending from one face of the disk, a vertically disposed shaft,outstanding elements fixed to the shaft and arranged at an angle to eachother, one of the elements being in the path of the first set of pinswhile the other outstanding element is disposed in the path of thesecond set of pins whereupon rotation of the disk the first mentionedpins will engage its corresponding outstanding element to rotate theshaft in one direction and thereby dispose the other outstanding elementin the path of the second set of pins whereby to rotate the shaft in thereverse direction, a carriage slidablymounted on the base to be set at apoint to release the alarm escapement at a predetermined time, andelements carried by the shaft to move the carriage stepby-step wherebytorelease the escapement at the end of the movement of the carriage.

9. An alarm mechanism including a base, an alarm escapement mountedthereon, a disk rotated at a given speed, a: set of radially disposedpins extending from the periphery thereof, a second set of pinsextending from one face of the disk, a vertically disposed shaft,outstanding elements fixed to the shaft and arranged at an angle to eachother, one of the elementsbeing in the path of the first set of pinswhile the other outstanding element is disposed in the path of thesecond set of pins whereupon rotation of the disk the first mentionedpins will engage its corresponding outstanding element to rotate theshaft in one direction and thereby dispose the other outstanding elementin the path of the second set of pins whereby to rotate the shaft in thereverse direction, a slidable rack bar to be set at a point to releasethe alarm at a predetermined time, and a pair of pivoted pawls carriedby the shaft and engageable with'the rack bar to lower the samestep-by-step, and means for releasin the escapement upon the completionof t e downward movement of the rack bar.

10. In a time operated alarm, a time mechanism including an alarmescapement, a pivoted latch normally rendering the escapementinoperative, a pivoted trip, a flexible element connected with the tripat one end of the latch, and a slidable carriage to be set at a pointtoengage the trip at a predetermined time, and means operated by the timemechanism for feeding the carriage toward the trip at a predeterminedspeed whereupon engagement of the carriage with the trip the latch willbe disengaged from the escapement.

11. An alarm mechanism including a base, an alarm escapement mountedthereon, a carriage advanced in one direction at a predetermined speed,an outstanding pin carried thereby, a pivoted latch normally engagedwith the alarm escapement, a pivoted trip arranged below the carriage,an operative connection between thetrip and latch whereupon engagementof the trip by the pin at the end of the movement of thecarriage, thealarm escapement will be released.

12. 'The combination with an alarm escapement including a pivoted latchnormally v ment and a pivoted latch normally rendering the sameinoperative, a longitudinally movable rack bar, time operated meansinclud ing pivoted pawls adapted to be alternately engaged with the rackbar to lower the same step-by-step, a trip operatively connected withthe latch and disposed in the path of the rack bar to be engaged by thelatter upon the completion of its longitudinal movement to disengage thelatch from the escapement.

14. A time controlled alarm including a time mechanism having an alarmescapement, a shaft alternately driven in opposite directions by thetime mechanism, a pair of pivoted pawls carried thereby, a slidablecarriage, a rack bar hingedly mounted thereon, a spring normally urgingthe rack bar in aposition to be alternately engaged by the pawls to feedthe same step-by-step in one direction, a latch normally engaged withthe escapement, a trip operatively connected with the latch and disposedin the path of the rack bar whereby to disengage the latch from theescapement upon the end of the movement of the rack bar, andfinger-engag ing elements carried by the carriage whereby to move therack bar against the tension of the spring to clear the trip and to movethe carriage to set position.

15. An alarm mechanism including a base and clock mechanism mountedthereon procarriage slidable on the/guide rods, a rack bar carriedthereby, a vertical shaft driven alternately in reverse directionsby-the time mechanism, pivoted elements carried thereby to alternatelyengage the rack bar to move the same step-by-step in one direction, andmeans for releasing'the alarm escapement upon the completion of themovement of'the carriage in one direction.

16. An alarm mechanism including a base, a casing mounted thereon, aclock mechanism including an alarm escapement within the casing, acarriage slidably mounted in the casing, a rack bar carried by thecarriage, a graduated scale on the casing and having the same number ofgraduations as there are teeth on the rack bar, an indicator carried bythe carriage and movable over the graduated scale, and a pairof pivotedpawls, each of which being alternately moved to one side of the teeth onthe rafck bar and operated at a predetermined speed by the timemechanism, and means for releasing the alarm escapement upon completionof the movement of the rack bar.

17. A time operated alarm including a base, the time mechanism includingan alarm escapement, a pair of brackets mounted on the base, a pair ofguide rods mounted therein, a rack bar slidably mounted on-the rods,outstanding bearings mounted on the base, a vertical shaft journaled inthe bearings, means operated by the time mechanism for ,driving'theshaft alternately in reverse directions, a pair of parallel pinsextending from one of the bearings,-an outstanding pin carried by oneend of the shaft and disposed between the parallel pins to limit therotary movement of the shaft, and pivoted elements carried by the shaftto alternately engage and means operated at the the rack bar to move thesame step-by-step,

end of the movement of the rack bar for releasing the escapement.

18. An alarm mechanism including a base, a time mechanism embodying analarm escapement mounted thereon, a rack bar slidably mounted on thebase to be set at a point to release the alarm at a given time, a shaftdisposed parallel to the rack bar and alternately driven in reversedirections by the time mechanism, a frame fixed to rotatewith the shaft,a pair of pawls pivoted within the frame and each being adapted to bealternately engaged with the rack bar to permit the same to movedownwardly stepby-step, leaf springs carried by the frame and engagingthe pawls to normally retain the same at an angle with respect to thevertical whereby to engage one pawl with one tooth of the rack bar upondisengagement of the other pawl with the tooth next in order, and meansfor releasing the escapement upon the completion of the movement of therack bar;

19. In a time controlled alarm, a time mechanism, a longitudinallymovable carriage, a rack bar carried thereby, a shaft alternately drivenin reverse directions by the time mechanism, pivoted elements carried bythe shaft and adapted to alternately engage the rack bar whereby to feedthe latter step-by-step, and an alarm actuated upon the end of themovement of the carriage in one direction.

20. In a time controlled alarm, a vertically arranged base, a timemechanism mounted thereon, a vertically movable carriage also mountedthereon, a rack bar carried thereby, a vertical shaft operativelyconnected with the time mechanism and driven alternately in reversedirections, a rectangular frame fixed to rotate with the shaft, a pairof pivoted pawls carried thereby adapted to alternately engage the rackbar to lower the same step-by-step, and an audible signal operated uponthe carriage reaching its lowermost position,

21. An alarm mechanism including a base, a time mechanism mountedthereon including an alarm escapem'ent, parallel guide rods disposedlongitudinally of the base, a plate slidably mounted on the guide rods,a plate hingedly supported on the slidable plate, a rack bar rigid withthe free end of the hinged plate, pivoted pawls supported adj acent therack bar and alternately engaged therewith to move the rack barstep-by-step and operated by the time mechanism, a pair of parallelfinger-engaging members, one of which being rigid with the slidableplate and the other being pivotally connected thereto, amoutstandingfinger carried by the pivoted plate adapted to be engaged by the pivotedfinger-engaging element to swing the pivoted plate to a position todisengage the rack bar from the ivoted pawls, and means for releasingthe a arm escapement upon the end of the movement of the rack bar in onedirection.

22. A time controlled alarm including a base, a casing mounted thereonprovided with a graduated scale and further provided with a longitudinalslot, a, carriage slidably mounted in the casing, a rack bar pivotedthereto to swing toward and away from the same, elements operated by thetime mechanism for moving the rack bar step-by-step in one direction, afinger engagin element rigid with the carriage and exten ing outwardlythrough the slot, an indicator carried thereby and movable over thescale, an L- shaped' finger-engaging element arranged parallel to thefirst mentioned finger-engaging element and pivoted to the carriage, afinger extending laterally from the rack bar and disposed in the path ofthe inner end of the L-shaped element whereupon rocking the latter therack bar will be moved away from the pawls to permit the carriage to beshifted to set position, a spring normally urging the rack bar intoengagement with the pawls, and means to be engaged by the rack bar uponthe end of the movement of the same to release the alarm escapement.

CHESTER R. GAINS,

